Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 1074)

1024 Brocade 6910 Ethernet Access Switch Configuration Guide
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Setting the Switch’s IP Address (IP Version 6)
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• IP Address – An IPv6 address assigned to this interface.
In addition to the unicast addresses assigned to an interface, a host is also required to listen to
the all-nodes multicast addresses FF01::1 (interface-local scope) and FF02::1 (link-local
scope).
FF01::1/16 is the transient interface-local multicast address for all attached IPv6 nodes, and
FF02::1/16 is the link-local multicast address for all attached IPv6 nodes. The interface-local
multicast address is only used for loopback transmission of multicast traffic. Link-local
multicast addresses cover the same types as used by link-local unicast addresses, including all
nodes (FF02::1), all routers (FF02::2), and solicited nodes (FF02::1:FFXX:XXXX) as described
below.
A node is also required to compute and join the associated solicited-node multicast addresses
for every unicast and anycast address it is assigned. IPv6 addresses that differ only in the
high-order bits, e.g. due to multiple high-order prefixes associated with different aggregations,
will map to the same solicited-node address, thereby reducing the number of multicast
addresses a node must join. In this example, FF02::1:FF90:0/104 is the solicited-node
multicast address which is formed by taking the low-order 24 bits of the address and
appending those bits to the prefix.
Note that the solicited-node multicast address (link-local scope FF02) is used to resolve the
MAC addresses for neighbor nodes since IPv6 does not support the broadcast method used by
the Address Resolution Protocol in IPv4.
These additional addresses are displayed by the CLI (see “show ip interface” on page 592).
• Configuration Mode – Indicates if this address was automatically generated for manually
configured.
Interface
To show the configured IPv6 addresses:
1. Click IP, IPv6 Configuration.
2. Select Show IPv6 Address from the Action list.
3. Select a VLAN from the list.
FIGURE 322 Showing Configured IPv6 Addresses